You are free to use The Success music track (even for commercial purposes), but you must include the following in your video description (copy & paste):

The Success by Keys of Moon | https://soundcloud.com/keysofmoon
Music promoted by https://www.free-stock-music.com
Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/

You are free to use The Success music track (even for commercial purposes), but you must include the following in your video description (copy & paste):

The Success by Keys of Moon | https://soundcloud.com/keysofmoon
Music promoted by https://www.free-stock-music.com
Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/

Track description: Uplifting corporate music track by Keys of Moon suitable for any motivational videos.

The majority of the royalty-free music on this website is released under Creative Commons Licenses (CC-BY). You are free to use the (CC-BY) music (even for commercial purposes) as long as you include credit and link in your video (project) description or somewhere in your internet profile (blog, vlog, podcast, social network, etc.).

You are free to use The Success music track (even for commercial purposes), but you must include the following in your video description (copy & paste):

The Success by Keys of Moon | https://soundcloud.com/keysofmoon
Music promoted by https://www.free-stock-music.com
Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/